<http://webisa.webdatacommons.org/390065748>	<http://www.w3.org/ns/prov#value>	"PCBs are a class of man-made compounds that were manufactured and used extensively in electrical equipment such as transformers and capacitors." .
<http://webisa.webdatacommons.org/prov/354199273>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/390065748> .
<http://webisa.webdatacommons.org/prov/278125765>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/390065748> .
<http://webisa.webdatacommons.org/390065748>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/390065748>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<unitar.org> .